X-ray machine



March 1927 M. B. ADRIAN X-RAY MACHINE Filed Jan. 22. 1925 2 sheets-Sheet 1 Fig.3.

March 8,1927. 1,619,962

v -M. B. ADRIAN X-RAY MACHINE INVENTOR. 1644222 6} 404a ATTOR EY;

Fig I/ l 'atented Mar. 8, 1927.

UNITED FICE.

a'rnr X-RAY MACHINE.

Application filed January 22, 1923. Serial No. 614,074.

This invention relates to X-ray machines and is particularly directed to a machine for examining the foot. This application is a continuation in part of my co-pending application filed June 16, 1921, SerialNo. M7905.

The-broad objects ofthis invention are,

in gen-erahthe same as the objects specified in the co-pending application above referredto. Briefly stated it is my broad object toprovide an X-ray machine by whichit ispossible to examine the foot of a pa tient not only in an unloaded condition but also while the foot is active in sustaining its share of the weight of the patientsbody.

Other objects which this inventionhas in con nnon withlhosc disclosed in my co-pending application are to provide an X-ray macine of a character particularly adapted to facilitate shoe fitting and orthopedic examination; to provide a machine of this character which is so constructed and arranged that it-can readily be actuated by shoe salesmen and others who are not ordinarily skilled la-ray operatives; to provide a machine in which'thepatient can conveniently and naturally bring his weight to bear upon the foot under examination; to provide a machinein which the patient can conveniently examine his foot simultaneously witlr an examination by the attendant; to provide a machine with means enabling the attendant to use a pointer for the purpose of making criticisms intelligent to the pationt; and to provide a machine having prot ctive devices intended to secure the attendant and the patient against the inconvenience and harmful results which might, withoutsuch devices, ensue from the unskilled, use of an X-ray machine.

The obj ect', however, to which this application- 's particularly directed relates to the provison of an X-ray machine which will not only permit examination to be made of the foot in plan but will also permit the foot oft-he patient t'o-be viewed from either side in order that the articulation and position of the bones of the arch may be as certained in connection with an examination of the bones of the forward portion of the foot More particularly stated, it is the object ofthe invention disclosed herein to provide an X-ray machine in which a singleX-ray tube may be adjusted to permit a side view as well a plan view of the patients foot. "Lathe preferred embodiment of this invention, means is disclosed for enabling the patient to see a side elevation of the bony structure of his foot without altering his position in any respect. Other embodiments of this invention are so designed that by a slight change of position, the patient is nabled to obtain the new view of" his foot. in either case, I have made it possible for a X-ray tube and fluorescent screen to b, n. Furtherniore, this last mentioned design in which the patient changes his poi h in side elevation is particularly adapted for association with machines which have heretofore been constructed. without provision for an inspection of the arch. It is ponible 'by a slight modification of such efilSi'lllg machines to incorporate this additional feature to the mutual advantage of attendants and patients and with but slight additional expense.

The importance of this inventionis en'-.

hanccd in the eyes of those skilled in the art by reason of the fact that shoe fitting could be accomplished in a reasonably satis factory way without the use of X-ray apparatus. This is particularly true of the fitting of the forward portions of the foot.. The

sense of touch of the patient and of the atshoe salesman to tell anything of the proper fit of a shoe at the arch or to discover with the slightest accuracy the position of the bones of the arch, it is now made possible for customer and salesman, of patient and doctor alike to examine the arch of the customers or patients foot and to determine at once whether or not the bones are properly articulated andpositioned} As has heretofore been indicated, the fact that an examination of the arch can beconduc'ted slightly to inspect thebones' of the 1 Fig. 2.

Fig. 4 is a view corresponding to Fig. 1 illustrating a slightly modified form of invention.

Fig. 5 corresponds to Fig. 2 and is a front elevation of the device shown in Fig. 4.

Fig. 6 is a detail view on an enlarged scale showing a further slight modification in front elevation, with the front of the cabinet removed.

Fig. 7 is a detail taken on line 7--7 of Fig. 6.

Fig. 8 is a plan view of a modified tube mounting adapted to be provided for machines now in use to enable such machines to embody the feature which forms the subject matter of this application.

Fig. 9 is a longitudinal vertical section through a machine cabinet showing the application of the mounting which is illustrated in Fig. 8.

Fig. 10 is a front elevation of an X-ray machine cabinet of simple construction utilizing the tube mounting shown in Figs. 8 and 9 and provided with an attachment enabling the side elevation of the patients foot to be viewed, portions of the front of the machine and attachments being broken away to expose the interior construction.

Fig. 11 is a section talren on line 1111 of Fig. 8.

Fig. 12 is a detail front elevation of an indicating plate which is used in connection with the tube mounting shown in Figs. 8 to 11.

Like parts are identified by the same reference charactersv throughout the several views.

Although several modifications are illustrated in the accompanying drawings, it will be noted and will be more particularly brought out hereinafter that the modifications are in most part slight and are intended primarily to illustrate the fact that the various features disclosed herein may be combined'in numerous ways to achieve the objects which have heretofore been specified.

Each of the several embodiments herein disclosed includes a cabinet A. The lower portion of the cabinet comprises a boXlilre structure 1 providing a platform 2 accessible from the rear of the machine and adapted to support the weight of the patient. The box 1 normally houses an ordinary Coolidge X-ray tube, which is illustrated diagrammatically in Figs. 1 to 7, inelusive, as being disposed within a rectangular case 3. The box also preferably houses the entire mechanism necessary to the proper functioning of an X-ray tube including transformers, a rheostat, switches, etc. Such apparatus is well known in the art and has been fully disclosed in the co-pending application above referred to. Inasmuch as it forms no part of the present invention, it will not be further discussed herein.

Erected upon the forward end of the boxlike device 1 is a superstructure or hood 4 which is preferably provided with an inclined rear wall 5 which is cut away centrally to an upright vertical panel 6 to provide a recess 7 for the limbs of the patient (see Fig. 7). Adjacent the platform 2, the panel 6 terminates in an inclined panel 8 which is so disposed as to intersect the plane of platform 2 at 9. A forward extension 10 of recess 7 is thereby provided to receive the foot or feet of the patient. Ordinarily, the extended recess 10 is made of suflicient size to receive one foot only, but this is not necessarilythe case. 7 i

In the top panel 11 of hood 4, I provide one or more eye pieces permitting the patient or attendant, or both, to look into the interior of the hood for the purpose of viewing upon a suitable screen therein the foot of the patient. The eye pieces 12 and 13 may be fixed and are intended primarily for the use of the attendant or other interested persons. The eye piece 14 is vertically adjustable in order that it may be made to conform substantially to the height of the patient, thereby enabling him to view the image upon the screen without inconvenience. To this end, the eye piece let is preferably mounted at the upper end of a tube 15 which may be of elongated cross section as shown and is preferably adapted to telescope within a similarly formed collar 10 on the top panel 11 of hood 1. For the purpose of securing the device in any desired position of vertical adjustment, the rods 17 may be provided and the set screws 18 may be mounted inthreaded relation to the eye piece support 19 and adapted to engage rods 17. The arrangement, as described more fully in my co-pending application, is such that when the set screws 18 are loosened, the eye piece 14, together with its carrying element 19 and the telescoping tube 15, may be raised and lowered relative to hood a, to accommodate the convenience of the patient. Then the desired adjustment has been obtained, it may be fixed by again tightening the set screws 18.

It will be noted that the telescoping demisses;

vice: whichcarries eye piece 145 is inclined forwardly at a slight angle andv is also slightly offset forwardly of panel'fi. arrangement is such that an observer with his footin recess 10 will be caused to lean slightly forwardly in orderto use eye piece Maud will thereby be caused naturally to throw his weight upon the foot under observation. I

As is well known in the art the bodily member under X-ray investigation is not viewed directly. It is rather the image of said member upon a fluorescent screen rendered luminous by the action- 01"- the Xray 7 that is seenby' the patient and by the operator. In. thedevice shown in Fig. 1,, such a screen is disposed at 8, replacing the panel shown: at S in the detailview in 7. With the X-raytubein the position indicated at 3 in Fig. 1, the. rays will emanate from said tube as indicated by the broken lines and will pass through the compartment 10, impinging upon the screen 8" which forms the top of said compartment. The screen will thereupon become luminous in proportion to the intensity of the r vs striking it and the varying resistance otter'ed to the rays by the structure of the foot will produce upon the screen 8 an image of the foot showing the bones in their exact relations to each other and to a shoe which may encase the foot at the time. The lines of sight froin the eye pieces 12 and 14 are also indicated in broken lines in Fig. 1 illustrating how the patient and the operator may view simultaneously the image on screen 8. As will readily be understood, the bodily position of the patient may be shit-ted while the position of the bones is watched and from such observation the fitting of shoes and the. making ofother ex-' aminations of the foot'is greatly expedited.

The me'anshy which this same machine is rendered available for inspecting the bones of the arch will now be described. A rock shaft 21 is journa-led in the front upper portions of the box part 1 or the cabinet and terminates eateriorly of the cabinet in a manually operable crank 22. \Vithin the cabinet, the rock shaft 21 supports the case 3 which houses the X-ray tube, thereby making it possible through the manipulation of crank 22 to oscillate the X-ray tube about the axis of rock shaft 21. The arrangement is preferably such that the rock shaftmay i be oscillated through 180 so that the case 3 housing-the tube may be adjusted to the position in which it appears in Figs. 2 and and to a position directly opposite. When this is done, the tube will be at the height of the compartment 10 wi thin which the foot of the patient is located and the rays emanating from the tube will pass horizontally and transversely through the foot of the pa tient.

The

To receive an image of the foot, a fluorescent screen. is 111S'3It6d alternatively in will. be remembered,however that suchraiys as pass through the foot with the tube in the position in which it is shown in Figs. 2: and 3 are hIfLVGl'llIlg'llOTlZOllttlllY and in order to.

render them visible: to the patient and to the, V

oper atoig itisnecessary to provide a mirror such as is shown at 24. ltach of the mirrors is pivoted at 25 and each is preterably provided with a. semi-elliptical. spring 26 against which the case 3 can: impinge without shock to oscillate the mirror about its axis at 2-5; The arrangement is such that in each instance, the case 3, upon being ele vated to the horizontal as shown in Fig. .2, will impinge upon one otthe springs26 lee-- neath a. mirror 2% and will elevate said min ror out of the way as is. indicated in dotted lines at the right of Fig 2. Screws 2'1 pro-' vide adjustable stops for limiting the downward movement of each mirror.

\ll'itlrthe parts as shown in Fig. 25. it will be obvious that a patient looking into the. eye cup 14; or an operator looking into eye cup 13 will be able to see-inthe left hand mirror 24 light emanatinglirom the radiant screen. inserted in slot 23 and thus to view the image of the patients foot in side ele valtion. When the inspection is completed; the crank 22 may be utilized. to swing 3 downwardly to: its normal position. as indi-- be allowed to return by gravity and to con taeu with: screw 2? so that should it now hedesired to inspect the patients foot from an opposite viewpoint, the fluorescent screencan be inserted into the righthand-slot 3. and the mirror 2% will be properly set to receive the light from said screen and reflectsuch light upwardly to eye. pieces 12. and 1a..

The position of the patients' foot is indicated in broken lines 30 in-Fig. 3' and the fluorescent screen 31 is shown to be properly positioned in the l'efthand slot 23 to he acted upon by X-rays emanating from case 3. and passing through the patients toot.

It is particularly to be noted that the portions 32- of hood 4; which lie at either side (it the recess 7 in which the patients leg is disposed provide space l'or the case 3 when said case is swung upwardly to the position in which it appears in 2 and 3. here it is desired to view the arch of the patients toot, it is essential that the X-ray tube. be disposed at a sufiicient distance rearward-1y from the front of the machine to include at least such portions of the'foot as lie within the cone of rays emanating from the tube the manner designated in Fig. 3. It is desirable, therefore, to'h'ave the side portions llO 'tirety by the reference character 31.

of the hood extend rearwardly as at 32 so that the case 3 which houses the Coolidge tube may move freely in the plane in which tion in one of the slots 23 a suitable fluorescent screen such as is designated at 31. It may be well at this time to disclose briefly the assembly of such a screen in order that the manner in which it is inserted and withdrawn from the slideways provided there for may be more fully understood.

A fluorescent screen is shown in detail in Figs. 9 and 10 and is designated in its en- The screen preferably includes a frame 33 within which are bound in successive strata a sheet of bakelite or other substance opaque to ordinary light, designated at 34, the fluorescent screen proper which is shown at 35, and a sheet of lead glass which appears at 36. The

opaque substance represented at 34 has the function of cutting ofi light rays emanating from the Coolidge tube which is preferably used in connection with a machine of this sort. This opaque substance permits X-rays to pass freely to the sensitive fluorescent screen 35, which is afforded physical protection against breakage or scratching by the presence of the bakelite sheet 34. As has previously been explained, the X-rays which reach the fluorescent screen 35 cause said screen to become luminous and the illumination thereof is visible to the observer through the lead glass plate 36. Lead glass is used because it has the peculiar property of ob structing and preventing the passage of the X-rays while permitting ordinary light to pass freely through it. The glass also serves to protect the delicate fluorescent screen 35. This arrangement of the three-ply screen described aboveis familiar to those skilled in the art and the only point which it is desired to bring out particularly is the fact that the assembled screen is preferably mounted in a channeled frame 33, as shown in Fig. 9, and is thereby adapted to be handled freely and to be moved in and out of the suitable guideways provided for the frame as occasion demands.

In order to obviate the necessity for manually changing the position of screen 31 by an operation separate from that required to shift the position of the case 3 which contains the Coolidge tube, the embodiment of this invention disclosed in Figs. 4 to 7, inclusive, has been devised. This construction differs from that shown in the first three figures of the drawings principally by reason of the fact that the bracket 37 which supports case 3 from rock shaft 21 is'exnewness tended upwardly beyond said rock shaft in the manner indicated at 38 and carries screen 31 in a position adapted to receive the emanations from case 3 in the manner shown. With the embodiments shown in Figs. 4 and 5, it is only necessary to utilize crank 22 to oscillate the rock shaft 21 to any one of its three positions, which lie within 180 of movement. When the case 3 which contains the Coolidge tube is elevated to the position in which it appears in dotted lines in Fig. 5, the screen 31, being connected therewith, will move simultaneously from the full line position in Fig. 5 to its dotted line position in said figure and will, regardless of the position of case 3, at all times be maintained directly opposite the case and in the proper place to receive X-rays emanating from case 3 and passing through the foot of the pa tient. The means employed for lifting mirrors 24 out of the way to permitthe proper positioning of case 3 may be the same as that heretofore disclosed. In other words, it may include semi-elliptical springs 26 disposed beneath each mirror, and adapted to receive the impact of the case 3 as it assumes its elevated position.

If desired, however, shock to the apparatus may be lessened by directly connecting each mirror with the oscillating bracket 37 in the manner indicated in Figs. 6 and 7. The mirrors 24 are mounted in the manner previously disclosed with the exception that the pintles 25 upon which the mirrors are pivoted are extended and provided with short lever arms 39 to which a cord 40 is secured. The cord 40 passes over pulleys 41 journaled on the front panel'of the machine and extends downward intermediate its ends to engagement at 40 with a portion of bracket 37 at a point somewhat removed from the axis upon which said bracket oscillates. The arrangement is such that when the bracket 37 is swung through its arc of movement, the mirrors 24 will be correspondingly actuated so that one of said mirrors will be automatically removed from the path of case 3 when said case is swung to the position in which it appears in dotted lines in Fig. 6 or to a position 180 removed from the position in which it is shown. WVhen one of the mirrors 24 is elevated as shown in Fig. 6, the other will always be properly positioned by means of one of the screws 27 which has previously been described or by some other suitable form of stop for limiting the downward movement of said mirrors.

If desired, means may be provided for cushioning the movement of bracket 37 and its associated tube-containing case 3 and fluorescent screen 31 into any of its predetermined positions. This may conveniently be done pneumatically by providing a cylinder 42 pivotally supported from a pin 43 carried by the front panel of box 1. A pisiii) ton 44: reciprocable within the cylinder is associated through rod 45 with the bracket 37, to which the rod may conveniently be pivotally connected at 4-6. A springl'? seated between the piston l l and the head of cylinder 42 may be utilized, if desired, to partially counterbalance the weight of the case This is desirable when the weight of case 3 and the Coolidge tube therein greatly exceed in moment about rock shaft 21 the screen assembly 31.

Fig. 7 adds considerably to the disclosure already discussed herein, since the embodiment of this invention shown in Fig. 7 provides means for moving the Coolidge tube and fluorescent screen longitudinally of the machine so that in their vertical position they may be aligned with the forward portions of the foot and in their horizontal position they may be moved rearwardly into alignment with the arch portions of the foot.

It will be remembered that the recess 7 which accommodates the leg of the patient is bounded at its forward side by an upright panel 6. From the recess 7, the foot of the patient extends still further forward. in the extended recess 10 therefor provided. lf it were not for the vertical panel 6 an elongated fluorescent screen 31 might be provided which would cover the enti length of the patients foot. It is desirable, however, to have the patient stand erect or lean slightly forwardly in order to bring his weight upon the ball of his foot. Therefore, the panel 6 represents the extreme rearmost limit to which the screen 31 can be moved when the tube and screen are vertically disposed for the purpose of viewing the patients footin plan. It will be obviousthat with the tube and screen 31 in the position indicated in 7 and with the patients foot in the position indicated therein in dotted lines. the forward portions of the foot will be fully delineated upon the screen so that the image of these portions will be clearly visible through the eye cups inthe top of the hood portion i of the cabinet. It will also be obvious, however, that the path of the X-rays between tube 50 and screen 31 will not include to any considerable extent the arch of the patients foot when tube and screen are swung to the position in which they are illustrated in Fig. It will be remembered, however, that the portions 32 of the hood which lie upon either side of recess 7 are extended rearwardly and provide ample room to accommodate the casing 3 which hou .s the tube, as well Accordingly, I provide for as the screen. moving both the .creen and. easing 3 rear wardly at such times as it desired to inspect the arch.

For this purpose, I extend the rock shaft 21 in the manner indicated in Fig. i and I provide as a bearing for the extended shaft an elongated sleeve 51 which may be procured to the front of the cabinet.

vided with a flange 52 enabling it to be se- An axiallydisposed slot 53 extending diametrically through said sleeve and opening to the end thereof is adapted to receive across pin 54 set in the rock shaft 21. The arrangement is such that with the rock shaft 21 and bracket 37' carrying the screen and tube in the position in which they appear in Fi 7, the pin 54 will contact with the outer extremity of sleeve 51, thereby maintaining the screen and tube in the forward position in which they are illustrated in full lines. If, however, the rock shaft 21 be rotated by manipulation of handle 22 in either direc tion, the pin 54 will register with and will be received into slot 53 in sleeve 51, thereby enabling the attendant to move" rock shaft 21 axially and thus to shift screen 31 and tube 50 bodily to the rear, where the screen will then occupy the position in. which it is shown in dotted lines. A dotted line showing of the casing 3 is omitted from Fig.7 to avoid complicating the drawing. A spring 55 confined between the front panel of the cabinet and the bracket- 37 serves to facilitate the rearward movement of bracket, screen and tube when the pin 5% of rock shaft 21 registers with the slot 53 as aforesaid. It will be obvious that by this arrangement a single hand lever may be utilized to bring the tube and screen intov the best possible positions for the examination of the arch as well as of the forward portions of the foot.

It must beclear that in their rearward positions the casing '3 and screen 31' will be received into the rearwaidly extended portions 32 of the hood upon either side of re cess 7. The interaction of pin 54 with slot 53 prevents bracket 37 from being rotated at this time from its horizontal position toward the vertical position in which'it appearsin Fig. 7 and thereby prevents injury to the screen which would certainly occur if the bracket could bejrotated to bring the screen into contact with the side margins of the vertical panel 6. The provision of slot and pin ensures that the bracket 37 must :first be pulled forwardly before it can be rotated and the pin does not leave the slot until the bracket is sufficiently advanced in its position so that the screen will clear panel '6 in the manner illustrated.

Each of the machines which has been discussed herein has been built with the express purpose in mind of providing'a tube inspection of'the patients arch as well as of I the forward portions of his foo .Such a device is shown in Figs. 8 to 12, inclusive.

It is necessary that the patientsfoot occupy a sl ghtly different position during the examination of the forward portion thereof than during the examination of the arch portions. This slight inconvenience, how ever, is offset by the fact that this modified embodiment of my invention is such that many machines now in use and adapted only for inspections of the forward portions of the foot can readily be converted to permit the making of the very much more important examination of the patients arch. As a disclosure of this new embodiment of my invention proceeds, it will be apparent that not only is a single X-ray tub used to accomplish this added function, but also a single screen framed in the manner already described may be shifted from place to place as desired to bring it into proper alignment with the tube and the patients foot and thereby to permit the proposed inspection.

In the embodiment shown in Figs. 8 to 12, inclusive, the cabinet 1 and the hood portion 4 thereof are essentially similar to the corresponding parts already described. The chief difference consists in the fact that the cabinet may be made much narrower because with this design, itis not necessary to have the X-ray tube swing about the axis of rock shaft 21 in the manner already described. A further modification consists in replacingthe inclined panel 8 which, in Fig. 7 lies directly above the patients foot with a removable fluorescent screen panel 31 whch is enclosed in a frame 33 in the manner already described. In order to make the screen 31 removable, the vertical panels and 56 which comprise-the sides of recess 7 are provided with inclined grooves 57 constituting a slideway enabling the framed fluorescent screen to be slid inwardly immediately beneath the vertical panel 6. The floor 2 may be extended at 2 to shut off from the hood all light which may be produced by the Coolidge tube 5O in the lower part of the cabinet. An aluminum sheet 59 may be used to filter the X-rays and protect the patient from possible burns.

In order that the tube mounting may be made clear, the preferred construction of the tube will first be described.

The X-ray tube preferably includes not only the ordinary Coolidge tube 50 but also a protecting cover 60 of lead glass which is shaped to conform to the tube and is provided intermediate its ends with lenses 61 apertured to receive bolts 62 by means of which its two parts may be clamped together about the usual bulbous portion of tube 50. The lead glass serves to confine the X-rays which are permitted egress only through an aperture 63. It will be obvious, therefore, that by rotating both tube 50 and its enclosing glass shield 60, the Xrays may be directed as desired.

To permit such rotation, the posts 6% and are positioned centrally in the cabinet 1 and are provided at their upper extremities with removable yokes 66 adapted, when in place upon said posts, to provide journals in which the cylindrical extremities of the lead glass shield 60 can rotate. The posts 64: and 65 as well as yokes 66 are preferably constructed of some insulating material such as fiber.

To enable the tube to be rotated in its bearings by an operator on the exterior of the cabinet, I provid a clamping device 67 which is preferably rectangular in form and open at its center to permit the electrical lead 68 to reach the end of the Coolidge tube 50. A yoke 69 is associated with the rectangular frame element 67 and may be clamped thereto by bolts 70. The operating rod 71 has a threaded extremity upon which a nut 72 is engaged for the purpose of clamping a .central portion of member 67 between said nut and the collar 73 which may be integrally formed upon said rod. The rod extends outwardly through the front panel of cabinet 1 and is provided exterior thereto with an operating knob or handle 7 from which projects radially a linger 75. Suitable stop pins 76 on the front wall of the cabinet designate extreme positions to which handle 7 L may be rotated. The finger 75, being disposed in the same direction as that in which the X-rays emerge from opening 63 serve also as a pointer to indicate to the operator the position of the parts within the cabinet. This position may be defined by characters upon the exterior of the cabinet in the manner illustrated in Fig. 12.

It will be obvious from the foregoing description that the operator is provided with means at the front of the cabinet by which he can readily rotate the entire X-ray tube assembly to cause the emanations therefrom to pass straight upwardly or to either side. When the X-rays are directed upwardly and screen 31 is in the position in which it appears in Fig. 9, it will be clear that the patients foot in recess 10, or rather the image thereof, will be clearly visible upon the screen. hen, however, it is desired to inspect the arch of the patients foot, the tube will be manipulated by means of handle 7% into either of the two positions designated by L and R in Fig. 12. Fig. 10 shows the tube in the position which it assumes when the handle in turn brings finger 75 to the position designated by It in Fig. 12. i

In order to support the patients foot in the path of the X-rays emanated from tube 50 when said tube is in the position in which nominee it is illustrated in Fig. 10, I provide a step 7 8 at one side of the cabinet. Itis neces sary, therefore, for a patient who has had the forward portions of his foot examined to descend from the platform 2 to the step 7 8 for the purpose of having the arch portions of his foot examined.

Step 78 may form a part of the 'abi net itself or, as illustrated in Fig. 10, it may be supported by rods 79 from a subordinate cabinet 80 which constitutes an attachment for the main machine. The cabinet 80 is provided with a vertically disposed-guideway between members 81 and 82 into which the fluorescent screen 31 is adapted to be slid from the front. It will be understood that the screen will be withdrawn from grooves 57 at the completion of the examination of the forward portions of the patients foot and will. be inserted between members 81 and 82 when an examination of the .arch portions is desired. The secondary cabinet 80 contains a mirror 83 disposed at an angle of 45 and adapted to reflect upward'ly :rays of light emanating from the fluorescent screen. A hood 84 corresponding in general to the hood t of the main :cabinet .is :provided at its upper extremity with an eye piece 85 through which the :operator or patient may look to inspect in the mirror 83 the reflection of the image upon the fluorescent screen.

ilt will be understood that the attachment comprising the auxiliary cabinet 80 and the step 78 may be moved bodily around the main cabinet 1 and may be positioned upon the other side thereof in a location corresponding to that in which it appears in Fig. 10. The lead cones 86 may be used, if desired, to confine the X-rays to a path which includes the area of the fluorescent screen assembly .31. The confinement of the X-rays is desirable in order to preventpo sible burns or other injuries to patients or bystanders. It, will liltewise be understood (that aluminun'i plates 8? may be dispos latany point in the path of the X-rays to serve as a filter and remove those portions of the rays which tend to cause burns. Such a .plate is shown at 87 on the right hand side :of the cabinet as viewed in Fig. 10. It will he understood. however that these plates will be used wherever necessary in any of the apparatus disclosed in this application.

it will be ob ious from the foregoing description of the device shown in 8 to 12, inclusive, that it permits of the making of a suitable exan'iination of the arch of a patients foot as well as of the forward portions thereof and that such an examination can be made with almost as great facility as is the device disclosed on Sheet 1 of the drawings. It will also be obvious in order to use for examinations of the arch a machine whic'hwas constructed only to per.-

patient to shift the location of his foot.

init examinations of the forward portions of the foot, it is only necessary :to provide a mounting for the X-ray tube enabling it to be rotated in a manner herein disclosed and to add to the main cabinet an auxiliary device provided with a step and with a fluorescent screen such as is shown at 8Q.

The mirror in the auxiliary cabinet shown at 80 is obviously unessential and is intended merely to promote the convenience with which the device may be used.

It will be noted that the disclosure herein completely satisfies the objects specified for this invention. chines, an examination of the arch portions of the patients foot is possible by means of the same general arrangement which permits an examination of the forward portrons of the foot to'be made. In each case,

the adjustment of the tube proper is accomphshed simply by the rotation of the tube upon its axis. In the structure shown in Figs. 1 to '7, inclusive, the tube 18 rotated about an axis remote from itself in order to permit both of the examinations above referred to to be made without requiring the It Wlll be observed, however, that even though 'the axis about which the tube moves is remote from the axis of the tube. the ultimate result accomplished includes a rotation of the tube upon its own axis so that the rays which in the original position of :the tube were upwardly directed are, at the conclusion of tube movement, directed horizon- .tally to one side or the other.

I recognize that under manycircumstances it is desirable not only to view an image of the bones of a patients foot but also to make a record of their arrangement :andarespective location. For this purposepthe frame 33 which constitutes a part of "the fluorescent screen assembly may be provided on its under side with a pair of oppositely disposed flanged elements 90 of such a char-'- acter as to be adapted to provide a slide way for the mounting of a photographic plate 91. Such a plate, together with the flange members 90. is shown in 9 and it will be understood that anyone of the fluol rescent screen assemblies shown at 31 in the accompanying; drawings may be equipped with similar flanged members to receive a photographic plate, if desired.

In using photographic plate in a device oi. this kind. it is customary to insert the In each of these ma ing made permanent upon the sensitive pl1otographic plate.

The alternative use of the fluorescent screen anda photographic plate in connection with X-ray work is well known in the art, and this discussion of the particular mounting of screen and plate has been appended solely for the purpose of making it clear that when the term plate sensitive to X-ray is used in the accompanying claims, it is intended to refer both to the photographic plate upon which a permanent i1nage is produced and to the fluorescent screen upon which a temporaryimage is produced.

By reason or the full and complete disclosure herein, those skilled in the art will be able to combine the various refinements herein disclosed to produce many difierent arrangements of parts to obtain similar results. I do not, therefore, wish to be limited to the specific nnbediments herein disclosed, but claim my invention as follows.

I claim:

1. In a device of the character described, the combination with a cabinet, of an X-ray tube housed therein and mounted for rotative adjustment, whereby to be adjustable to emanate rays in a plurality of directions,

and motion t ansmitting connections for the rotative adjustment of said tube and including a manually operable portion exterior of said cabinet, said cabinet providing supporting means adapted to carry the weight of a patients foot in operative relation to said tube in the several positions thereo'l,-whereby said foot may be viewed by rays passing vertically or late ally therethrough and emanating from a single tube within said cabinet.

2. An X-ray apparatus for examining a foot under the normal weight of the body of a patient, including means for supporting the patient with body weight upon the foot, means for adjusting and mechanically supporting an X-ray tube underneath the foot and at the sides thereof at predetermined distances therefrom, and means for directing the rays of said tube through the foot from any one of said positions of adjustment.

3. In an X-ray machine designed to facilitate the examinations of the human foot, the combination with a foot support adapted to allow the patient to stand and apply the weight of his body to the foot to any desired degree and an adjustable mounting for an X-ray tube movable to various positions underneath and at the sides of a foot on said support, an X-ray tube carried by said mounting and supported to deliver its rays through said foot from any of said positions of adjustment, and means sensitive to X-rays correspondingly adjustable and ,simultaneously with said tube on the other side of said foot to receive the rays passing through the foot.

l. An X-ray machine including means for supporting a foot under load, an X ray tube rotatably mounted to project its rays vertically or laterally through a foot supported by said means, and a fluorescent screen movable simultaneously with said tube for adjustment to receive the vertically or the laterally projected rays subsequent to their passage through said foot.

5. An X-ray machine including a cabinet providing means for supporting a patients ioot under the weight of a patients body, an X-ray tube rotatably mounted within said cabinet and provided with means exte lot to said cabinet for its manual adjustment, and a fluorescent screen adjustable to receive rays emanating from said tube in one position thereof.

6. In an X-ray machine, the combination with an Xra v tube, of means for support ing the foot of a patient under varying conditions of load, and means for directing the einanations "from said tube through the foot from positions at the bottom and sides thereof, and means for receiving the image produced by said rays from any direction in which they may be derived from said tube.

7. In an X-ray machine for examination of the foot oi a patient, the combination with an X-ray tube, ot a mounting for the tube adapted to permit rotative adjustments of the tube to direct the emanations at different angles, and means for supporting the foot of a patient under load. and in positions to receive said emanations from the bottom or side at predetermined (llSttll'lCQSfl'OlTl the tube. v

8. An Xray machine including a cabinet providing means for supporting a patients toot under load, a tube rotatable within said cabinet and adjustable by its rotation to projectits rays vertically or laterally through a foot so supported, a screen sensitive to X-rays positioned to receive rays laterally projected through said foot. and a. mirror inclined at an angle rendering the image on said screen visible from above.

9. An X-ray machine including a cabinet providing means for supporting a patient in a standing position with the toot to be examined subject to his weight in any desired degree, a hood above said means provided with an eye piece, an X-ray tube rotatably adjustable within said cabinet to project its rays at a plurality n'l" angles through a foot supported by said means, a screen sensitive to X-rays and adapted'to receive rays passing through said foot at an angle from the vertical, and a mirror inclined to permit the illumination of? said screen to be reflect-ed to an observer at a height greater than said screen.

10. An X-ray machine including a cabinet providing a platform adapted to support "a paticnts foot, in a position .to receive the u'eightof the patient in varying degrees during an.examinationiof the *foot, a hood rising above said platfor1n and provided 7'5 With a recesspartially receivinga ,patients foot. an .X-ray tubeiadjustable Within said cabinet to project Xrizayslaterally obliquely and vertically through a foot in said recess, and a. fluorescent screen adjustable to receive 10 saidrays,

11. An X-ray inachineincluding a. cabinet providinga, platform adapted to support a foot under .load, a 4109a rising above said platform {and ,provided with a .recessipar- 1' ,tially enclosingaportion thereof, ,an 'Xrray .'tube adjustable within said cabinet to projeet i r-ays vertically and laterally through: a foot so supported, .niea-ns exterior to said I cabinet for manuallyadjusting the position of said tube, ande'fluorescent screen ,ad-

just-able to receive, rays. projected in=either of said directions.

12. An X-ray machine includinga cabinet providing a platform adapted to support a foot under load, a hood rising;above said platform and partially enclosinga portion thereof, ,an eye, piece in said hood above said platform, an Xrraytube: adjustable within said cabinet to project rays. ataplurality of .angles through a (foot supported upon -,the

, partiallyenclosedr portion, of. theplatforin, a

fluorescent screen 1 adjustable. to. receive rays \einanatingfroin said tubesubsequent to their ,passage. through saidfoot and regardless of .their angle of ,projection, and -a l mirror adapted inoneipositioniof adjustment of said screen to reflect an image thereon to said eyepiece,

i 13. An Xrray machine, including a cabinet providing a.,platforn1 adaptedto support, a.

patients 7 foot under load, a hood partially enclosing amortionbf said'platform and provided with :an. eye piece EZLbO'VG. the, level .th'ercof, an X-ray .tube .iadjustable within l-saidcabinetqto project raysvertically and laterally thnougz'h a [foot upon the: partially enclosed. portion; of said, platform, a. fluorescent screen adjustable to, receive said rays in a. plurality of,positions1 ofv adjustment of said tube, anda plurality ot nirrors adapted in 4 different positions of said: screenv to reflect images thereon toward. Said eye-piece. Ji l. AnX-ray machine including acabinet 1; roviding a platfornixfor. the support of. a patients footundenload and including hoodrpart'ially enclosiuga portion of sai d ,platforni,.an X-ray tiibelprovided with a supporting bracket adjustable about. an axis including a, foot.supportedkupon the portion of. said platform so enclosed, said tube and bracket being adjustable to 'projectthe rays of said, tube laterally and vertically through said foot. 21. screen movable inconforinity h with said-tube llld disposed {diametrically opposite? tcfls'aid tube; ,aeross said; that "to re- -ccive raysv emanating from saidv tube through said foot in any of the positions of adjust n entol said tube, means exterior to said cabinet for manually adjusting said tube and screen, and a mir era'dapted in 'onepo- .sition. of said screento reflectjto ward thetop of .said hood light radiating therefrom.

15. An X-ray machine; providing a plat- .form adapted. to support a patients-foot under loachand including ahoodpai'tially enclosing a, portion of'sai d platform, an X-ray tube Within said cabinet,, a'bracket adjustably supporting said tube for rotations-bout afootsupported upon the. partially enclosed portion .of said platform as acenter, ,.a.8 fluorescent screen carried by said bracket diametrically opposite from said tube "and adapted regardless of thepositionfof said tube to receive einanationspassing through a .foot so supportcd -and a' painoff jinirrorsc$ upon opposite si'des'of Said cabinet inclined 'to reflect upwardly light raysradiatingfiro n said. screen in opposite, positions thereof.

16. An X-rayanachine including cabinet provided with aplatfor n-an,d"incl u;d-..9

a hood partially enclosing a portion thereof, said portion, beingadapted to supports patients foot under 'load, jan Xj-ray tube a fluorescent screen, 3a. bracket g provifda mounting for said (tube and screen m upon oppositesides of the partially enclosed portion of. said platform, .rneans' for rojtat- Zing sai-dbracket about ,a E pivot ,point interniegdiate said tube and screen, a f niirror pivoted to the .side of said cabinet andu ,adapted in one position of said 'ft'ube and screen to receivenand reflect upivaidlyjlight radiating from said screen, and neans reni dering. said. niirron automatically ustalole aboutits-pivot to provide,rooin for one of 1 themenibers carried by said brackets in one adjustment of. sai d bracket.

17. lnian X-ray machine [for examining a foot under load, .the .;cQi 1'1b,ination With; a

cabinet providing a platform 21(l211it6(lt0. support a loaded foot and an eye piece. above said. platform, of a bracket rotatable about anaxis. intersectingjthe position of a foot upon said platform, an X-ray tubesupported from said bracket and niiovablc 'thc're- .1

with topa plurality of positions about said foot, a tluorescentscreen adjustable to positions upon opposite sides of said "foot to, receive raysfroin said: tube inodiiiedj'by 'passage through said fooin aud a-pair ilf', .l1'1l1.-- rorsypivoted to said cabinetlaud 'nor nally positioned .at an-ang-le 'adap'tedjto reflect upwardly toward said :eye j piece, rays of light radiatingfroni said N reen,ea'ch of said 7 mirrors being automatically 111OVi1-bl6?'ll0m.-l the path ofisaid tubeas said tube approaches an elevation corresponding to} that of; afoot ,upon the platform.

. An1X y ma ine i l di githecomea ies ;.;r v ei e p ibinetie form adapted to support a foot under load, of a bracket within said cabinet pivoted for movement about an axis intersecting the position of a foot upon said platform, an X-ray tube supported from said bracket and movable therewith to various positions about said foot, a fluorescent screen adapted in one position of said tube to receive X-rays therefrom subsequent to the passage of said rays" through a foot upon said platform, a mirror pivoted to said cabinet and normally disposed at an angle to said screen adapted to reflect light emanating therefrom in a transverse directiomand motion transmitting connections enabling said mirror to be actuated about its pivot by the moven'ient of said tube and bracket into a given position other than the position aforesaid.

19. In an X-ray machine the combination with a cabinet providing a platform adapt ed to support the weight of a foot under load, of a bracket pivoted within said cabi net for movement about an axis intersecting the position of a. foot upon said platform, an X-ray tube supported from said bracket and movable therewith from posi tions upon either side of said foot to a. location immediately therebeneath, means adjustable to receive in a plurality of positions of said tube rays emanating therefrom and passing through said foot, said means being sensitive to rays emanating from said tube, a plurality of mirrors pivoted within said cabinet, and an adjustable stop associated with each of said mirrors to limit the pivotal movement thereof in one direction whereby each mirror is positioned to render said sensitive means visible from above.

20. In an X-ray machine the combination with a cabinet providing a platform adapted to support the weight of a feet under load, of a bracket pivoted within said cabinet for movement about an axis intersecting the position of a foot upon said platform, an X-ray tube supported from said bracket and movable therewith from positions upon either side of said foot to a location imme diately therebeneath, means adjustable to receive in a plurality of positions of said tube rays emanating therefrom and passing through said foot, said means being sensitive to rays emanating from said tube, a plurality of mirrors pivoted within said cabinet, an adjustable stop associated with each of said mirrors to limit the pivotal movement thereof in one direction whereby each mirror is positioned to render said sensitive means visible from above, and motion transmitting means associated with each of said mirrors and adapted to be actuated by the ultimate movement of said tube to either of its positions at the side of said foot, whereby each mirronmay be elevated about its pivot point from the path of said tube.

2]. In an X-ray machine, the combination with a platform adapted to support a foot of said rays, and a mirror inclined to render said radiant screen visible from above.

22. In an X-ray machine, the combination with a platform adapted to support a foot under load, of a structure partially enclosing a portion of said platform, an X-ray tube within said structure and operable in the position at the side of afoot upon said platform, a sensitive screen adapted to receive rays emanating from said tube and passing horizontally through said foot and adapted to be rendered radiant by the action of said rays, and a mirror inclined to render said radiant screen visible from above, and means for adjusting the angle of inclination of said mirror. Y

23. An X-ray machine including the co1nbination with a platform adapted to support a patients feet under load, of a structure partially enclosing a portion of said platform, an X-ray tube, a screen sensitive to rays emanating from said tube, and a pivotally mounted bracket supporting said tube and screen upon opposite sides of the portion of said platform so enclose-d, said bracket being adjustable to revolve said tube and screen as a unit about a. foot positioned upon said portion of the platform.

24. An X-ray machine including the combination with a platform adapted to support a patients foot under load, of a structure partially enclosing a portion of said platform, an Xray tube, a screen sensitive to rays emanating from said tube, and a pivotally mounted bracket supporting said tube and screen upon opposite sides of the portion of said platform so enclosed, said bracket being adjustable to revolve said tube and screen as a unit about a foot positioned upon said portion of the platform, and means for moving said bracket, tube and screen axially into alignment with different portions of said foot.

25. An X-ray machine including a cabinot providing a platform adapted to support a patients foot under load, astructure partially enclosing a portion of said platform and adapted partially to enclose a foot thereon, an X-ray tube and a fluorescent screen mount-ed oppositely with respect to said foot and for revolution as a unit about an axis intersecting said foot, and means exterior to said cabinet for revolubly adjusting said tube and screen. V

26. An X-ray machine including a cabinet providing a platform adapted to sub- 7 said foot and for revolution a unit about an axis intersecting said foot, and means exterior to said cabinet for revolubly adjusting said tube and screen, means enabling said tube and screen to be adjusted parallel lo theaxis about which they are r-evoluble.

27. An X-ray machine including a cabinet providing a platform adapted to support the weight ofa foot underdoad and providing a structure adapted partially to enclose a foot so supported, a shaft extending into said cabinet substantially at the level of a foot so supported, a bracket carried bysaid shaft withinthe car beneath an X- ray tube, and a fluorescent screen carried by said bracket and disposed oppositely with reference to a foot so supported, and a handle upon said shaft exterior to said cabinet enabling said shaft, bracket, screen and tube to be revolved as a unit about the axis of said shaft and to be moved bodily parallel to said axis.

28. An X-ray machine including a cabinet providing a platform adapted to support a foot under load, a portion of said platform being partially enclosed, a bracket within said cabinet, an X-ray tube supported therefrom, a fluorescent screen supported therefrom upon an. opposite side from said tube with the foot of the patient interposed between it and said-tube, a mounting for said bracket enabling it to be oscillated about an axis substantially at the level of said platform, and interacting elements respectively revolublc with said bracket. and -sta iionary with respect thereto, said elements being adapted in one position of revolution of said. bracket to permit bodily axial movement thereof and in other positions of said bracket to oppose such movement.

29. An X-ray machine including a cabinet having a foot supporting platform and a hood having rearwardly extending portions at either side of the normal position of said foot upon said platform, an X-ray tube, a fluorescent screen, a bracket supporting said tube and screen oppositely with referenceto a foot upon said platform and pivotally mounted whereby said tube and screen may be revolved as a unit about a foot'so sup ported, a shaft provided with a transverse pin, asleeve provided with an axially extending slot adapted to receive said pin, said bracket being mounted upon said shaft and the disposition of said slot being such as to permit said shaft and bracket to move axially rearwardly when the tube and screen carried by said bracket are aligned with the rearwardly extending portions of said hood.

30. An X-ray machine including a cabinet providing a platform adapted to support a patients foot under load, said cabinet having rearwardly extending portions upon each side of a foot so supported, an X-ray tube and fluorescent screen, a bracket supporting said tube and screen for movement asa unit with n said cabinet, means exterior to said cabinetfor moving said bracket revolubly and axially, and means for obstructing the axial rearward movement of said bracket at such times as said tube and. screen are not aligned with the rearwardly extend ing portion ofsaid cabinet.

31. An X-ray machine including a cabinet providing a platform adapted to support a patients foot under load, said cabinet being provided with rearwardly extending portions adapted partially to enclose a foot so supported, an X-ray tube revoluble within said cabinet about an axis longitudinally intersecting a foot so supported, a screen revoluble about said foot oppositely to said tube, and means for adjusting said screen parallel to said axis whereby rays traversing different portions of said foot may be received thereby.

32. An X-ray machine including a cabinet providing a platform adapted to support a patients foot underload, said cabinet being provided with rearwardl'y extending portions adapted partially to enclose a foot so supported, an X-ray tube revoluble within said cabinet about an axis longitudinally intersecting a foot so supported, a screen revolublc about said foot oppositely to said tube, and means for adjusting said screen parallel to said axis whereby rays traversing different portions of said foot may be received thereby, and means preventing said axial adjustment of said screen except when said screen registers with said rearwardly extending portions of said cabinet.

33. An X-ray machine including a cabinet having a platform adapted to support a foot under load, walls partially enclosing afoot so supported, a narrow panel disposed vertically above the ankle of a foot so support ed, and other walls extending rearwardly from said panel and providing upon either side of the patients limb recesses opening to the interior of said cabinet in combination with a shaft journaled in the front of said cabinet at substantially the level of said platform, a transverse pin extending through said shaft, a fixed bearing sleeve for said shaft provided with a substantially horizon tal slot, a bracket carried by said shaft and revolubly and axially movable therewith, an X-ray tube and fluorescent screen supported from said bracket upon opposite sides of a foot supported on said platform, said tube and screen being movable as a unit with said bracket, and a handle on said shaft exterior to said cabinet, said shaft being revoluble to project X-rays on to said screen at a plurality of angles through said foot, and said shaft being axially movable only when said pin registers with said slot and said tube and screen clear said vertical panel and register with said recesses. 34. An X-ray machineincluding a cabinet providing a, plutforni adapted to support at pntients foot under load, and a hood partially enclosing a foot so supported and having open portions upon either side of said foot; in combination with an X-rz y generating device adjustable rotatably about said foot as it center, and a screen sensitive to X-rays 1-0- tzitnble adjustably aboutsaid foot and longitudinzilly adjustable with reference thereto.

35 An X-i'ay machine including a cabinet provid ng a plat'torln adapted to support a patients 'toot'undcr load and a hood partially enclosing a foot so supported, in combination with an Xiz y'tnbe; it'fluorescent screen, :ind a; bracket in supportingrelation tosz'iid tube 'and scrcen s 'id' bracket being mounted for rotationendfor axial movement as a unit with said "tubeand'screen.

An X-ray machine including a cabinet providing'e platform adopted to. support a patients foot under load and a hood extending rearwardly beside 'a foot so supported, in combination with ZIH'X-lll) tube adapted to i'QjeCtfrayS laterally through said foot toward said rearwardly extending hood, and 'a sensitive screen adjustable longitudinally of said foot within said'hood and ziilapted to receive rays projected through different portionsof said foot. 7

MATTHEW 1,5. ADRIAN. 

